Testing anionic spacers by SERRS (surface-enhanced resonance Raman scattering) of a cationic free-base porphyrin in systems with laser-ablated Ag colloids

0188901 - UMCH-V 20023166 RIV NL eng J - Článek v odborném periodiku
Šmejkal, P. - Vlčková, B. - Procházka, M. - Mojzeš, P. - Pfleger, Jiří
Testing anionic spacers by SERRS (surface-enhanced resonance Raman scattering) of a cationic free-base porphyrin in systems with laser-ablated Ag colloids.
Vibrational Spectroscopy. Roč. 19, č. 2 (1999), s. 243-247. ISSN 0924-2031. E-ISSN 1873-3697
Grant CEP: GA ČR GA203/97/0259; GA ČR GA202/98/P139; GA AV ČR KSK4050111
Grant ostatní: GA UK(XC) 219/96/B/CH
Výzkumný záměr: CEZ:AV0Z4050913
Klíčová slova: laser ablation * porphyrin * SERRS
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 0.848, rok: 1999

Thiopheneacetic acid and several thiol-based anionic species were tested as prospective spacers between the surface of Ag colloidal particles and a chromophoric cationic adsorbate. Time evolution of the SERRS signal of a cationic free base porphyrin, 5,10,15,20-tetrakis(1-methzl-4-pyridiniumyl)porphine attached to the surface of laser-ablated Ag colloidal particles modified by adsorption of either 3-thiol-based anionic species was measured on 2 h time-scale and analyzed.
Trvalý link: http://hdl.handle.net/11104/0084778